k610i need help debranding

i have a k610i unlocked to take any card but its flashed with three firmware can i flash it with o2 firmware to get rid of annoying button on home screen if so where would i find the files to do it. any help would be greatly appreciated as im new to sony ericsson flashing Etc

yes u can use gerninc main then westen europe fs and a o2 custom pack or a europe 2 if u just want it debranding full with out the o2
this post will give u help with reflashing it
Flash your phone using SETool 2 Lite - Top Sony Forums